Wave chaos in rapidly rotating stars

被引：40
|
作者：
Lignieres, Francois [1 ]
Georgeot, Bertrand [2 ]
机构：
[1] Univ Toulouse, CNRS, Lab Astrophys Toulouse Tarbes, F-31400 Toulouse, France
[2] Univ Toulouse 3, CNRS, Phys Theor Lab, F-31062 Toulouse, France
来源：
PHYSICAL REVIEW E | 2008年 / 78卷 / 01期
关键词：
D O I：
10.1103/PhysRevE.78.016215
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The effects of rapid stellar rotation on acoustic oscillation modes are poorly understood. We study the dynamics of acoustic rays in rotating polytropic stars and show using quantum chaos concepts that the eigenfrequency spectrum is a superposition of regular frequency patterns and an irregular frequency subset respectively associated with near-integrable and chaotic phase space regions. This opens fresh perspectives for rapidly rotating star seismology and also provides a potentially observable manifestation of wave chaos in a large-scale natural system.
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页数：4
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